20047+4938 ES 2688 BC

 
 
20h 04m 40.11s +49 38' 27.8" P.A. 169.00 sep 15.4 mag 10.41,15.10 Sp A2
 
 
Coord 2000 20047+4938 Discov num ES 2688 Comp BC Coord arcsec 2000 20 04 40.11 +49 38 27.8
Date first 1909 Date last 2015 Obs 5
Pa first 159 Pa last 168.8 P.A. Now (θ) 168.8°
Sep first 13.9 Sep last 15.392 Sep. Now (ρ) 15.392"
Mag pri 10.41 Mag sec 15.10 delta mag (ΔM) 4.69 Spectral class A2 (white)
Pri motion ra +007 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20047+4938 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 04 40 +49 38 31 KU 58 AB 2020 19 186 2.7 10.23 10.41 0.18
Show 20 04 40 +49 38 28 ES 2688 BC 2015 5 169 15.4 10.41 15.10 4.69 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3567-00721-2 Gaia DR2 2087754985222802048